Crosslinked ethylene-tetrafluoroethylene copolymer insulating material

A technology of tetrafluoroethylene and cross-linked ethylene, applied in the direction of insulators, insulated conductors, insulated cables, etc., can solve the problems of large smoke generation, harsh processing temperature requirements, poor thermal stability, etc., and achieve low smoke generation and tensile strength High retention rate of strength and elongation at break, good anti-oxidation effect

Active Publication Date: 2015-05-20
中广核三角洲(江苏)塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the technology of X-ETFE insulating material is mastered by a few well-known foreign wire and cable manufacturers. It is expensive and has a long delivery cycle. In special times, sales control is implemented in my country.
The current XETFE insulation material produces a lar

Method used

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  • Crosslinked ethylene-tetrafluoroethylene copolymer insulating material
  • Crosslinked ethylene-tetrafluoroethylene copolymer insulating material
  • Crosslinked ethylene-tetrafluoroethylene copolymer insulating material

Examples

Experimental program
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Embodiment 1~3

[0027] Embodiments 1-3: A cross-linked ethylene-tetrafluoroethylene copolymer insulating material, consisting of the following components by mass:

[0028] 100 parts of ethylene-tetrafluoroethylene copolymer,

[0029] Prepolymer crosslinking agent 0.3~8 parts,

[0030] N, N'-bis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine 0.1~1 part,

[0031] 0.5~3 parts of 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanuric acid,

[0032] Antimony trioxide 1~5 parts,

[0033] 1~3 parts of antimony pentoxide,

[0034] N,N'-ethylene bis stearamide 0.1~2 parts

[0035] 0.1~0.5 parts of pentaerythritol stearate,

[0036] 0.1~3 parts of white oil;

[0037] The chemical structural formula of the prepolymer crosslinking agent is as follows:

[0038]

[0039] Where X is vinyl, allyl, methallyl, propargyl or a combination of the above, n= 2~15;

[0040] The weight average molecular weight of the prepolymer crosslinking agent is 600~3000, and the 1,3,5-tris(3,5-di-tert-buty...

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Abstract

The invention is a crosslinked ethylene-tetrafluoroethylene copolymer insulating material. The crosslinked ethylene-tetrafluoroethylene copolymer insulating material comprises the following components in parts by mass: 100 parts of an ethylene-tetrafluoroethylene copolymer, 0.3-8 parts of a prepolymer crosslinking agent, 0.1-1 part of N, N'-bis[beta-(3,5-di-t-butyl-4-hydroxyphenyl) propionyl] hydrazine, 0.5-3 parts of 1,3,5-tris(3,5-di-tert-butyl 4-hydroxybenzyl)isocyanuric acid, 1-5 parts of antimony trioxide, 1-3 parts of antimony pentoxide, 0.1-2 parts of N, N'-ethylene bisstearamide, 0.1-0.5 part of pentaerythritol stearate and 0.1-3 parts of mineral oil, wherein the weight average molecular weight of the prepolymer crosslinking agent is 600-5000 and the weight part ratio of 1,3,5-tris(3,5-di-tert-butyl 4-hydroxybenzyl)isocyanuric acid to N, N'-bis[beta-(3,5-di-t-butyl-4-hydroxyphenyl) propionyl] hydrazine is 3: (0.9-1.2). By the crosslinked ethylene-tetrafluoroethylene copolymer insulating material, the problems that the smoke amount is high, the crosslinking agent is easy to self-polymerize and the requirements on the processing temperature is very rigorous during the processing of the current XETFE insulating material are solved and the domestic blank is filled up.

Description

technical field [0001] The invention relates to special wire and cable materials, in particular to radiation crosslinked ethylene-tetrafluoroethylene copolymer insulating material. Background technique [0002] Ethylene-tetrafluoroethylene copolymer (ETFE), also known as F40, is a transparent crystalline material with a melting point of 265-280°C. It is the strongest and lightest fluoroplastic. ETFE has excellent dielectric, insulating and mechanical properties, radiation resistance, crack resistance, aging resistance, various chemical solvent resistance, high and low temperature resistance, long-term working temperature between -65°C and 150°C. After ETFE resin is irradiated and cross-linked, its radiation resistance, tensile strength and aging resistance are greatly improved, and its long-term working temperature is increased to 200°C. It is widely used in special cable insulation materials, such as transportation, aviation, chemical and nuclear plants, Insulation of vari...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L79/04H01B3/44C08K13/02C08K5/25C08K5/3492C08K3/22C08K5/20C08K5/103C08J3/28C08J3/24
CPCC08J3/246C08J3/28C08J2323/08C08J2479/04C08J2491/06C08K2201/014C08L23/0892C08L2201/02C08L2201/08C08L2203/202C08L2205/03C08L2312/06H01B3/44H01B3/441H01B3/445H01B7/29H01B7/292H01B7/295C08L79/04C08L91/06C08K13/02C08K5/25C08K5/34924C08K3/2279C08K5/20C08K5/103
Inventor 史丛丛
Owner 中广核三角洲(江苏)塑化有限公司
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